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Changzhou LiLi Drying Equipment Co., Ltd
What is the working principle of the condensation shot peening granulator?
Date: 2025-10-11Read: 3
The condensation shot peening granulator is a specialized equipment that forms particles through rapid cooling and solidification of molten materials after atomization. Its working principle can be divided into the following core steps:
1、 Molten material transportation
Solid raw materials (such as stearic acid, fatty acid glycerides, etc.) are first heated to a molten state and sent to the atomization device at the top of the granulation tower at a stable flow rate through a transfer pump. During the transportation process, it is necessary to maintain a constant temperature to prevent the material from solidifying prematurely.
2、 Atomization process
The molten material is dispersed into small droplets through three main atomization methods:
1. Centrifugal atomization: The high-speed rotating atomization disc uses centrifugal force to shake the liquid into droplets.
2. Pressure atomization: High pressure liquid forms a mist through a nozzle.
3. Airflow atomization: Compressed air blows liquid into droplets.
4. The atomization effect directly affects the uniformity and particle size of the final particles.
3、 Cooling and solidification
The atomized droplets come into full contact with low-temperature air (or inert gas) in the granulation tower and achieve rapid solidification through the following methods:
1. Cold air enters from the bottom/side of the tower and flows in the opposite direction to the falling droplets.
2. Droplets, due to their large specific surface area, rapidly transfer heat to the air.
3. The material undergoes a phase transition within seconds, forming solid particles.
4、 Particle collection
The solidified particles fall to the bottom of the tower by gravity and undergo gas-solid separation through a cyclone separator or bag filter. Large particles are directly collected, fine powder can be recycled twice, and the exhaust gas is purified before being discharged.
5、 Application Fields
This device is widely used in:
1. Chemical industry: catalysts, resins, dye intermediates.
2. Food: Seasoning, protein, dairy products.
3. Pharmaceutical: traditional Chinese patent medicines and simple preparations, antibiotic granules.
4. Ceramics: metal oxides, porcelain clay.
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